2158427066 has 8 divisors (see below), whose sum is σ = 3428090100. Its totient is φ = 1015730368.

The previous prime is 2158427057. The next prime is 2158427077. The reversal of 2158427066 is 6607248512.

It can be written as a sum of positive squares in 2 ways, for example, as 1840839025 + 317588041 = 42905^2 + 17821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31741541 + ... + 31741608.

Almost surely, 2^2158427066 is an apocalyptic number.

2158427066 is a deficient number, since it is larger than the sum of its proper divisors (1269663034).

2158427066 is a wasteful number, since it uses less digits than its factorization.

2158427066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63483168.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 2158427066 is about 46458.8749971413. The cubic root of 2158427066 is about 1292.3469615664.

The spelling of 2158427066 in words is "two billion, one hundred fifty-eight million, four hundred twenty-seven thousand, sixty-six".